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Fachbereich Informatik Department o
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Acknowledgments First of all, I wou
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Contents Acknowledgments iii Abstra
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Contents ix 5.3.7. TubeLength .....
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List of Tables 1.1. Rangeoftubetype
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List of Figures 2.1. AccuracyandPre
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1. Introduction Heat shrinkable tub
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1.2. PROBLEM STATEMENT 3 hazards, r
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1.4. RELATED WORK 5 Length [mm] Tol
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1.5. THESIS OUTLINE 7 The vision pa
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2. Technical Background 2.1. Visual
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2.1. VISUAL MEASUREMENTS 11 (a) Fig
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2.1. VISUAL MEASUREMENTS 13 Figure
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2.1. VISUAL MEASUREMENTS 15 � xd
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2.2. ILLUMINATION 17 tubes alternat
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2.2. ILLUMINATION 19 effect of comp
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2.3. EDGE DETECTION 21 i 2 i 1 0 (a
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2.3. EDGE DETECTION 23 N × 1 kerne
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2.3. EDGE DETECTION 25 These operat
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2.3. EDGE DETECTION 27 (a) 0 ◦ (b
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2.4. TEMPLATE MATCHING 29 accuracy
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3. Hardware Configuration This chap
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3.2. CAMERA SETUP 33 3.2. Camera se
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3.2. CAMERA SETUP 35 eachcolorchann
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3.2. CAMERA SETUP 37 Figure 3.4: Co
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3.2. CAMERA SETUP 39 adjusting scre
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3.2. CAMERA SETUP 41 further distan
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3.3. ILLUMINATION 43 f V 12mm 129mm
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3.3. ILLUMINATION 45 (a) (b) (c) Fi
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3.3. ILLUMINATION 47 (a) (b) Figure
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3.4. BLOW OUT MECHANISM 49 A light
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4. Length Measurement Approach Whil
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4.2. MODEL KNOWLEDGE AND ASSUMPTION
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4.2. MODEL KNOWLEDGE AND ASSUMPTION
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4.2. MODEL KNOWLEDGE AND ASSUMPTION
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4.3. CAMERA CALIBRATION 59 4.2.7. B
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4.3. CAMERA CALIBRATION 61 Figure 4
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4.3. CAMERA CALIBRATION 63 is compu
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4.4. TUBE LOCALIZATION 65 (a) (b) F
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4.4. TUBE LOCALIZATION 67 � 1 Psm
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4.4. TUBE LOCALIZATION 69 Global Th
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4.4. TUBE LOCALIZATION 71 but also
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4.4. TUBE LOCALIZATION 73 Global Re
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4.5. MEASURING POINT DETECTION 75 f
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4.5. MEASURING POINT DETECTION 77 T
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4.5. MEASURING POINT DETECTION 79 -
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4.5. MEASURING POINT DETECTION 81 0
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4.5. MEASURING POINT DETECTION 83 o
- Page 100 and 101: 4.5. MEASURING POINT DETECTION 85 (
- Page 102 and 103: 4.5. MEASURING POINT DETECTION 87 w
- Page 104 and 105: 4.6. MEASURING 89 side of the tube,
- Page 106 and 107: 4.6. MEASURING 91 fcor(x) =−(c1x
- Page 108 and 109: 4.7. TEACH-IN 93 inthemeasuringplan
- Page 110 and 111: 4.7. TEACH-IN 95 The pair of a pixe
- Page 112 and 113: 5. Results and Evaluation 5.1. Expe
- Page 114 and 115: 5.1. EXPERIMENTAL DESIGN 99 between
- Page 116 and 117: 5.1. EXPERIMENTAL DESIGN 101 where
- Page 118 and 119: 5.1. EXPERIMENTAL DESIGN 103 Ground
- Page 120 and 121: 5.2. TEST SCENARIOS 105 enough, the
- Page 122 and 123: 5.3. EXPERIMENTAL RESULTS 107 The t
- Page 124 and 125: 5.3. EXPERIMENTAL RESULTS 109 Detec
- Page 126 and 127: 5.3. EXPERIMENTAL RESULTS 111 Lengt
- Page 128 and 129: 5.3. EXPERIMENTAL RESULTS 113 GTD [
- Page 130 and 131: 5.3. EXPERIMENTAL RESULTS 115 gray
- Page 132 and 133: 5.3. EXPERIMENTAL RESULTS 117 Lengt
- Page 134 and 135: 5.3. EXPERIMENTAL RESULTS 119 (a) (
- Page 136 and 137: 5.3. EXPERIMENTAL RESULTS 121 (a) (
- Page 138 and 139: 5.3. EXPERIMENTAL RESULTS 123 Lengt
- Page 140 and 141: 5.3. EXPERIMENTAL RESULTS 125 Total
- Page 142 and 143: 5.3. EXPERIMENTAL RESULTS 127 Color
- Page 144 and 145: 5.3. EXPERIMENTAL RESULTS 129 Task
- Page 146 and 147: 5.4. DISCUSSION AND FUTURE WORK 131
- Page 148 and 149: 6. Conclusion In this thesis a func
- Page 152 and 153: A. Profile Analysis Implementation
- Page 154 and 155: A.3. SCAN LINES 139 gray value 400
- Page 156 and 157: B. Hardware Components B.1. Camera
- Page 158 and 159: B.2. ILLUMINATION HARDWARE 143 Desc
- Page 160 and 161: Bibliography [1] Y.I. Abdel-Aziz an
- Page 162 and 163: Bibliography 147 [34] R. J. Hunsick
- Page 164: Bibliography 149 [66] F. Truchetet,